dorsal/arxiv
View SchemaFeedback Systems for Linear Colliders
| Authors | L. Hendrickson, P. Grossberg, T. Himel, M. Minty, N. Phinney, P. Raimondi, T. Raubenheimer, H. Shoaee, P. Tenenbaum |
|---|---|
| Categories | |
| ArXiv ID | physics/0107020 |
| URL | https://arxiv.org/abs/physics/0107020 |
| DOI | 10.1109/PAC.1999.795699 |
Abstract
Feedback systems are essential for stable operation of a linear collider, providing a cost-effective method for relaxing tight tolerances. In the Stanford Linear Collider (SLC), feedback controls beam parameters such as trajectory, energy, and intensity throughout the accelerator. A novel dithering optimization system which adjusts final focus parameters to maximize luminosity contributed to achieving record performance in the 1997-98 run. Performance limitations of the steering feedback have been investigated, and improvements have been made. For the Next Linear Collider (NLC), extensive feedback systems are planned as an intregal part of the design. Feedback requiremetns for JLC (the Japanese Linear Collider) are essentially identical to NLC; some of the TESLA requirements are similar but there are significant differences. For NLC, algorithms which incorporate improvements upon the SLC implementation are being prototyped. Specialized systems for the damping rings, rf and interaction point will operate at high bandwidth and fast response. To correct for the motion of individual bunches within a train, both feedforward and feedback systems are planned. SLC experience has shown that feedback systems are an invaluable operational tool for decoupling systems, allowing precision tuning, and providing pulse-to-pulse diagnostics. Feedback systems for the NLC will incorporate the key SLC features and the benefits of advancing technologies.
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"abstract": "Feedback systems are essential for stable operation of a linear collider,\nproviding a cost-effective method for relaxing tight tolerances. In the\nStanford Linear Collider (SLC), feedback controls beam parameters such as\ntrajectory, energy, and intensity throughout the accelerator. A novel dithering\noptimization system which adjusts final focus parameters to maximize luminosity\ncontributed to achieving record performance in the 1997-98 run. Performance\nlimitations of the steering feedback have been investigated, and improvements\nhave been made. For the Next Linear Collider (NLC), extensive feedback systems\nare planned as an intregal part of the design. Feedback requiremetns for JLC\n(the Japanese Linear Collider) are essentially identical to NLC; some of the\nTESLA requirements are similar but there are significant differences. For NLC,\nalgorithms which incorporate improvements upon the SLC implementation are being\nprototyped. Specialized systems for the damping rings, rf and interaction point\nwill operate at high bandwidth and fast response. To correct for the motion of\nindividual bunches within a train, both feedforward and feedback systems are\nplanned. SLC experience has shown that feedback systems are an invaluable\noperational tool for decoupling systems, allowing precision tuning, and\nproviding pulse-to-pulse diagnostics. Feedback systems for the NLC will\nincorporate the key SLC features and the benefits of advancing technologies.",
"arxiv_id": "physics/0107020",
"authors": [
"L. Hendrickson",
"P. Grossberg",
"T. Himel",
"M. Minty",
"N. Phinney",
"P. Raimondi",
"T. Raubenheimer",
"H. Shoaee",
"P. Tenenbaum"
],
"categories": [
"physics.acc-ph"
],
"doi": "10.1109/PAC.1999.795699",
"title": "Feedback Systems for Linear Colliders",
"url": "https://arxiv.org/abs/physics/0107020"
},
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